During the 2007-09 financial crisis, regulators learned they did not always have the information or authority they needed to supervise the financial sector. One solution was the creation in 2010 of the Financial Stability Oversight Council to facilitate regulatory coordination and information sharing. Ten years later, are our laws adequate for activity-based financial stability risk monitoring and regulation? Do gaps remain? Are there regulatory overlaps that create risks or inefficiencies? How should the system be adapted to implement an effective activities-based approach?